#!/bin/sh
#
# Copyright (C) 2016-2017  Etersoft
# Copyright (C) 2016-2017  Vitaly Lipatov <lav@etersoft.ru>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#

load_helper epm-sh-warmup

epm_remove_old_kernels()
{

    warmup_bases

    case $BASEDISTRNAME in
    "alt")
        load_helper epm-query_package
        if ! __epm_query_package kernel-image >/dev/null ; then
            info "No installed kernel packages, skipping cleaning"
            return
        fi
        assure_exists update-kernel update-kernel 0.9.9
        sudocmd remove-old-kernels $dryrun $(subst_option non_interactive -y) "$@"

        [ -n "$dryrun" ] && return

        # remove unused nvidia drivers
        if is_command nvidia-clean-driver ; then
            if [ -n "$non_interactive" ] ; then
                yes | sudocmd nvidia-clean-driver
            else
                sudocmd nvidia-clean-driver
            fi
        fi

        return ;;
    esac

    case $DISTRNAME in
    Ubuntu)
        load_helper epm-query_package
        if ! __epm_query_package linux-image >/dev/null ; then
            info "No installed kernel packages, skipping cleaning"
            return
        fi
        info "Note: it is enough to use eepm autoremove for old kernel removing..."
        info "Check also http://ubuntuhandbook.org/index.php/2016/05/remove-old-kernels-ubuntu-16-04/"
        # http://www.opennet.ru/tips/2980_ubuntu_apt_clean_kernel_packet.shtml
        case $DISTRVERSION in
        10.04|12.04|14.04|15.04|15.10)
            assure_exists purge-old-kernels bikeshed
            ;;
        *)
            # since Ubuntu 16.04
            assure_exists purge-old-kernels byobu
            ;;
        esac
        sudocmd purge-old-kernels "$@"
        return ;;
    Gentoo)
        sudocmd emerge -P gentoo-sources
        return ;;
    VoidLinux)
        sudocmd vkpurge rm all
        return ;;
    esac

    case $PMTYPE in
    *)
        fatal "Have no suitable command for $PMTYPE"
        ;;
    esac
}
